* RNG (Random Number Generator)

Required properties:
- compatible : Should be "qcom,msm-rng"
- reg        : Offset and length of the register set for the device

Optional property:
- qcom,msm-rng-iface-clk : If the device uses iface-clk.
- qcom,msm-rng-hwkm-clk  : If the device uses hwkm clock.
- qcom,no-qrng-config    : Flag to decide whether the driver do the hardware configuration or not.

Example:

	qcom,msm-rng@f9bff000 {
		compatible = "qcom,msm-rng";
		reg = <0xf9bff000 0x200>;
		qcom,msm-rng-iface-clk;
		qcom,no-qrng-config;
	};
